Home / 3,084.77-4,257.05-1,687.61

Finding the Fourth Proportional to 3,084.77, 4,257.05 and 1,687.61

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Solution

The fourth proportional to 3,084.77, 4,257.05 and 1,687.61 is: 2,328.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.77 : 4,257.05 = 1,687.61 : x
  2. Step 2: Convert to fraction form
    3,084.77/4,257.05 = 1,687.61/x
  3. Step 3: Cross multiply
    3,084.77x = 4,257.05 × 1,687.61
  4. Step 4: Simplify right side
    3,084.77x = 7,184,231.71
  5. Step 5: Solve for x
    x = 7,184,231.71/3,084.77
  6. Step 6: Final answer
    x = 2,328.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.